Coupling.



R. JOHNSON.

COUPLING.

APPLICATION FILED NOV. 24, 1903.

932,869. Patented Aug. 31; 1909.

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UNITED sTATEs PATENT onrion.

ROBERT JOHNSON, OF BROWNSTATION, NEW YORK.

COUPLING.

To all whom it may concern:

Be it known that I, Ronnnr JOHNSON, a citizen of the United States,residing at fil'OWll Station, in the county of Ulster and State of NewYork, have invented certain new and useful Improvements in Couplers, ofwhich the following is a specification, reference being had therein tothe accompanying drawing.

This invention comprises certain novel im provements in detachable pipecouplings and has specially in view a novel type of locking mechanismtherefor which will hold the pipes in a liquid or gas tight connection,but which may be readily unlocked to permit the pipe sections to beseparated.

In carrying out the objects of the invention generally stated above itwill, of course, be understood that the same is susceptible ofmodifications of details and structural changes, but a preferred andpractical embodiment of the same is shown in the ac companying drawings,wherein- Figure 1 is a view in side elevation of the improved pipecoupler. Fig. 2 is a longitudinal sectional view of one of the couplermembers. Fig. 3 is a similar view of the other coupler member. Fig. 1 isa perspective view of the coupler member shown in Fig. 3. Fig. 5 is anend elevation of the coupler member shown in Fig. 2. Fig. 6 is an endelevation of the coupler member shown in Fig. at.

Like characters of reference designate corresponding parts.

The improved detachable pipe or hose coupler comprises primarily twocoupler members 1 and 2, each of which have their rear ends reduced andexteriorly threaded as indicated at 3 for engagement with the interiorlythreaded ends a of the pipe sections The said coupler members 1 and 2are each provided with a longitudinal opening (5 and 7, which registerwith, and are of substantially the same diameter as the openings 8 and 9of said pipe sections.

The forward end of the opening 6 of the pipe coupler member 1 isenlarged, as indicated at 10, and at the junction of said enlargedportion 10 and the opening 6, a shoulder 11 is formed. The exterior ofthe enlarged opening 10 is of smaller diameter than the main body -12 ofthe coupler member, and said exterior surface is provided withdiametrically oppositely located outstanding locking lugs 13, said lugs13 being Specification of Letters Patent.

Application filed November 24, 1908.

Patented Aug.

Serial No. 164,233.

preferably arranged on said surface so that there will be ampleclearance space between.

them and the abutment shoulder formed by the junction of said surfaceand the main body 12. The said main body 12 is provided with oppositelydisposed outstanding pivot ears 1st which receive pivot cars 15 carriedby latching levers 13, the locking ends 15 of which normally lieparallel with. the exterior surface'of the enlarged opening 19 and belowthe plane of the exterior surface of the main body 12. A spring 16 isinterposed between the handle 17 of said levers and the body 12 andexerts a pressure tending to force the locking ends 15 to their lockingpositions, as will presently appear.

The opening 7 formed through the coupler member 2 terminates in a tubeextension 18, and the main body of the said member at its forward end isprovided on opposite sides with longitudinal slots 19 which terminate intransversely extending locking recesses 20, the arrangement of slots andend recesses being such that the main body at its forward, or couplingend presents oppositely disposed longitudinally arranged slots whichpermit of the entrance therein of the lugs 18 of the coupler member 1until the ends of said slots are reached, whereupon the coupler membersmay be turned relatively to cause said lugs to enter the lockingrecesses 20. It will be observed by reference to Fig. 3 of the drawings,that the abutment shoulder 21 formed at the end of the slots 19overhangs the tube extension 18, a recess 22 being provided between saidtube and said overhanging portion into which a gasket or packingmaterial 28 is forced.

To look the coupler members 1 and 2 together, the slots 19 are alinedwith the lugs 13 of the coupler member 1, the locking levers raisedagainst the tension of their springs, and the two members pushedtogether. The tube extension 18 enters the enlarged end 10 of thecoupler member 1 until it abuts against the shoulder 11, and the lugsenter the slots 19 until they abut against the shoulder 21, while thesaid portion 10 enters the recess 22 until it abuts against the gasketor packing therein. A relative turning of the two coupler members willat this point, cause the locking lugs to enter the end recesses 20,after which, by releasing the locking lovers, the locking ends of thesame will be thrown into said slots 19 across the entrance to therecesses 20, and

thereby retain the locking lugs therein. To release the coupler members,the locking levers are rocked on their pivots, a relative turning of thecouplers will release the lugs from the recesses, and the members may bereadily pulled from their interlocking nested position.

It will be seen that the improved coupler is one that may be readilylocked or unlocked, and further, that by means Off the arrangements ofthe ends of said couplers, the tubes thereof are held one within anotherin such a manner that there is no danger of a leak, and also that theymutually strengthen-one another so that the coupler is able to withstandany nessure that may be imposed upon it.

Claim A pipe coupler comprising a tubular coupling member having areduced forwardly extending tubular projection, locking lugs on saidprojection, a pair of spring pressed latching levers pivotally mounted.on said coupling member, said levers being each provided with a latchinghead normally held in contact with the said projection and across oneface of the lugs thereon, a second tubular coupling member provided atits forward edge with oppositely disposed angular slots adapted toreceive said lugs and to be closed by the heads of said levers, and atubular projection and a recess carried by said sccoinl coupling memberadapted for interlocking engagement with the tubular projection 01" thefirst-mentioned coupling member.

in testimoi'iy whereof I hereunto atlix my signature in presence of twowitnesses.

ROBERT JGHNSON. lVitnesses C. H. SMEAD, LiT'rLn'roN FITZGERALD, Jr.

